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arXiv 2103.01934q-fin.CPcs.CEcs.NAmath.NA
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基于层次张量格式的高维Bundan期权定价

Pricing high-dimensional Bermudan options with hierarchical tensor formats

Christian Bayer, Martin Eigel, Leon Sallandt, Philipp Trunschke

摘要:

提出了一种基于层次张量的期权定价方法的有效压缩技术。它表明,“维数灾难”可以减轻计算的最小平方的蒙特卡罗方法以及对偶鞅方法,都使用高维张量多项式展开的Escherdan期权价格。这种离散化允许一个简单的和计算成本低的评估条件的期望。复杂性估计以及张量训练格式的优化程序的描述。数值实验表明,所提出的方法的有利的精度。动态规划方法产生的结果与最近的神经网络为基础的方法。

英文摘要:

An efficient compression technique based on hierarchical tensors for popular option pricing methods is presented. It is shown that the "curse of dimensionality" can be alleviated for the computation of Bermudan option prices with the Monte Carlo least-squares approach as well as the dual martingale method, both using high-dimensional tensorized polynomial expansions. This discretization allows for a simple and computationally cheap evaluation of conditional expectations. Complexity estimates are provided as well as a description of the optimization procedures in the tensor train format. Numerical experiments illustrate the favourable accuracy of the proposed methods. The dynamical programming method yields results comparable to recent Neural Network based methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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